Cartwheel boring and truing machine



(No Model.) 2 Sheets-Sheet 1. W. P. BARCLAY.

GAR WHEEL BORING AND TRUING MACHINE.

Patented Feb. 6, 1883.

I I V a H I "I z B"" (an,

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INVENTOR 97 AMA/LI WITNESSES ATTORNEY n. PETERS. PholO-Ulhographnr. Wilhmglun. n. c.

'(No Model.) 2 SheetS- Sheet 2. W. P. BARCLAY.

GAR WHEEL BORING AND TRUING MACHINE.

Patented Feb. '6, 1883.

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INVENTOR W $wz WITNESSES ATTORNEY N. PETERS. PhnXo-Lhhugnphar. Washington a. c.

UNIT D STATES PATENT @FFIQE.

WILLIAM I BARCLAY, OF CHICAGO, ILLINoIs.

CAR-=WHEEL BORING AND TRUING MACHINE.

SPECIFICATION forming part of Letters Patent No. 271,680, dated February 6, 18L3,

Application filed August 24,1882. (No model.) 7

To all whom it may concern: 4

Be it known that 1, WM. 1?. BARCLAY, a citizen of the United States, residing at Uhicagm.

in the county of Cook and State of Illinois, have invented anew and Improved (Jar-\Nheel Boring and Truing Machine, of which the following isa specification.

My invention relates to machines for boring and truing the tread and flange ot' car-wheels;

and my improven'ients are as described and :tional. Fig. 2 shows a plan view of the machine.. Fig. 3 is a front elevation of the driving head-stock, and Fig. 4'shows a detail part of the machine.

The bed-plate A is ofa form to support the :driving and boring head-stocks, and the pedestals tor slide-rests that the abrading-wheels are connected with.

The driving head-stock B is furnished with 7 a spindle, O, and to the said spindle is attached a face-plate, D. The car-wheel E is shown in position on the face-plate D. The face-plate has a projecting flange that is adapted to the size and shape of the car-wheel, and when the car-wheel is brought close up to the projecting flange of face-plate D the inside periphery of the rim of car-wheel fits close onto the said projecting flange of faceplate and brings the center of car-wheel concentrically with the center ot'faceplate- The car-wheel E is held onto the projecting flange ot' face-plate by a number of bolts, F, specially devised for the purpose, as hereinafter explained.

Thepedestal G is firmly secured to the bedplate A, and the boring-head G is so constructed that it can be shifted along the upper face of the pedestal G by the screw b, operated by the hand-wheel W.

The spindle C, faceplate D, and car-wheel E are made to revolve by the action of a screw acting upon the teeth of screw-wheel H. The screw H, that gives motion to the screw-wheel H, has its motion communicated to it by the belt-pulley H, that is connected to one end of the spindle of screw H.

The driving, head-stock B has three radial Passing through each of the slideblocks J is a a bolt, F, composed of several parts. The upper bolt F only requires to have a joint, and at the extreme ends of that part of the bolts that spans over the tread ot' car-wheel there are pivoted small rollers F, which are forcibly drawn close to the face of the flange of carwheel, and thus .hold the car-wheel firmly onto the projecting flange ot' face-plate- The opposite ends of these bolts have nuts and washers, and between the washers are rubber cushions K, which act a spring" and ease the tension that would otherwise be put-upon the bolts F by the roughness of the flange of oar-wheel that comes in contact with the small rollers F, pivoted from the ends of the bolts F, that reach over the tread of the car-wheel. Each bolt F passes through a tube, L, one end of the said tubes bearing against the inner washers that confine the cushions K. The opposite ends of the tubes bear against a shoul j der formed upon the bolt F. The tubes L have each two small journals which secure one The band-wheel \\,when turned 7 it compels the small cross-head P to move along, and the said cross-head being connected with the levers Q,the levers Q transmit their motion to the levers Q. The said levers,all being connected to the one rock-shaft Q, will necessarily make similar movements. The

upper ends of the two levers Q, are connected by short links R with the union cross-head N. A connection, as described, being produced by the intervening mechanism between the hand-wheel W and the bolts F, whatever force of motion is exerted upon the hand-wheel W is also exerted upon the bolts F, and the bolts F are specially contrived to hold the carwheel E onto the projecting flange of faceplate, the small rollers F at one end of the bolts F permitting the car-wheel to revolve slowly around, the cushions K at the opposite ends of bolts F yielding immediately to any extra tension produced by the roughness of that portion of the flange of car-wheel that the rollers F are made to roll over.

The tubesLare supported bythe slide-blocks J, and are also free to move through the slideblocks when motion is communicated to the said tubes by the levers M connected thereto. The tubes L,when moved horizontally,exerta. force of pressure against the face of the inner washers that confine the cushions K equal in amount to the force of motion communicated by the movement of the hand-wheel and this applied force, being also transmitted through the cushions K to the bolts F, is the means of keeping the car-wheel E rigidly to the projecting flange of face-plate, the small rollers l permitting the car-wheel to revolve slowly around with the face-plate, so that the hub can be bored out by the boring-head, and the periphery of car-wheel trued by the abrading-wheels.

The abrading-wbeels U are arranged to act upon the tread and flange of canwheel, and are supported by the standards U, which are secured to the upper slide of the duplex sliderests. These rests are of the ordinary lathe pattern, and allow the abrading-wheels U to be gradually moved back and forth in any (lirection, whereby the entire surface of the [read and flange of the car-wheel can be made to any desired size and shape. The abrading-wheels Ualso can be placed at any angle with the carwheel or rests by turning around the handwheel \V, which will cause the standards U, that support the abrading-wheels, to turn around conformably to the movement of the said hand-wheel. The pedestals 0 support the slide-rests for abrarling-wheels. A high motion of rotation is given to the abrading-wheels U by the belt-pulleys U, that are attached to one end of the abrading-wln-el spindles.

To the spindleVof boring-head G is attached theinstrument orcuttiug-tool used by the workmen, and as the spindle V revolves it gradually moves forward at the same time and bores out the hub of car-wheel to the correct size for car-wheel axle. The small bolt 3, belonging to the bolt I ,when unloosened,liberates that part i of the bolt that spans the tread ot' car-wheel, so

that it can be swung up out of the way. The

object of the bolt F having a-joint is to allow the car-wheel to be handily removed from the faceplate or placed in position on same. The driving-dog l completes the circle of the faceplate, and is a ring of iron faced with rubber. The entire dog can be set out by set-screws. The said rubber ring is pressed tight to the web of car-wheel, and acts as a frictional driver or dog to the car-wheel, so that the car-wheel could not change its original position by sliding around on the projecting flange of faceplate when the machine is under operation.

The mode of operation of thisimproved machine is as follows: The bolts 1* and the small rollers attached to them are first moved out from the face-plate by turning around the large hau'd-wheeli This gives clearance to a ca rwheel, so that it can be conveniently placed up to the projecting flange of face-plate, and the par 1: of the upper bolt F, to which the roller F is pivoted, is then dropped down to its horizontal position, and it is then made tirm asa solid bolt by tightening up the smallT-headed bolt 3. After the completion of the said operations the hand-wheel \V is then given a reverse motion, and all ofthe bolts F made to draw the car-wheel E firmly onto the projecting flange of face-plate. The car-wheel is now ready to be operated upon by the abrading-wheels U, which take 011' all irregularities from the tread and flange of car-wheel and reduce the same to a perfectly cylindrical form. At the same time the boring-head G is also brought into action and the hub of car-wheel is bored out to the desired size and exactly concentric with the tread of car-wheel.

Having thus described my invention, what I claim as new and original, and desire to secure by Letters Patent, is as follows:

1. The driving head-stock B, having divergent arms, to which are adjusted the slide blocks J, operated by a screw, b, and handwheel W, substantially as shown and described.

2. The bolts F, with rollers F,pivoted to one end, and rubber cushions K, attached at the opposite ends of said bolts, the upper bolt F havingajoint and attendant T-bolt, 3, in combination with the slide-blocks J, substantially as described and set forth.

3. The hand-wheel W,screw S, cross-head P, levers Q and Q, and rock-shaft Q, in combination with the union cross-head N, links R, and levers M, particularly arranged to an end, as shown and described.

WILLIAM PARIS BARCLAY.

Vitnesses J. E. DUNN, E. G. ANGUERA. 

